Labd-lam



P. RoBlNsoN.

`Lard Lamp.

Pate'ted Dc. 5, 1842.-

'UNIRE ABT P. RoismsoN, or oHiLLioorHE, OHIO.

Lann-LAMP.

Specification ofrLetters Patent No. 2,873, dated December 5, 1842.

VTo all whom t may concern Be it known that I, P. ROBINSON, ofChillicothe, in the county of Ross and State of Ohio, have invented anImprovement in the Manner of Constructing a Lamp for the Burning of Lardandother Oleaginous or Concrete Fatty Substances ,and I do herebydeclare thatthe following is a full'and exact description thereof.

In the accompanying drawing, Figure l, is a vertical section throughthey axis of my lamp. v

A, A', is the body, or receptacle, for the lard, &c.

B, is a cup, or piston, illingthe area of the receptacle, which iscylindrical. Around the edge, or periphery, a, a, of the cup, or piston,I wind cotton, iiaX, tow or other material that will not be injured byheat, instead of using leather, which is frequently rendered useless byplacing the lamp near the fire.

C, is a screw attached to the bottom of the cup, or piston, and passingthrough a nut D, in the tubular support E, of the lamp. The body A, ismade to rotate by allowing its bottom l), b, which is perforated forthat purpose, to be embraced between two'plates of metal c, c, which aresoldered to the upper end of the tubular support. Should any leakagetake place around the cup B, the material when warmed may be allowed torun down through openings around the nut D, and to pass out at anaperture CZ, left for that purpose.

My principal improvement in this lamp consists in the manner in which Iform the wick holder, or burner, E. The body of this I usually make inthe form of a globe, or nearly so; this globe, which is hollow, is shownin section in Fig. l; and Fig. 2, is a top, and Fig. 3, a bottom view ofit. This burner screws into the top of the lamp, in the usual manner. Onits upper side, it has six, or any preferred number of small openings,c, e, e, say of an eighth of an inch in diameter; and on its under side,it has one large central opening, f, exceeding in its area that of thesum of the openings on the upper side; there are, also, a Vnumber ofsmall openings, as shown at g, g, on theV lower side, surrounding thelarger opening ff. The small openings on the upper side may have shorttubes inserted within them to receive the small wicks which vare to Aloepassed through them. It is not essential to the operation of the lamp,that the wickholder should be globular, although I pre i fer this form.In Fig. il, I have shown it as rising cylindrically Vfrom its screwferrule,

alternately through one of the smaller, and

through the larger hole, until all the smaller holes have been filled.The holes g, g, are made for the admission of the lard from the body ofthe lamp into the interior of the burner; and when the cup, or piston,is forced up, for that purpose, there is not the slightest tendency toproduce a Adisarrangement of the wicks either in the larger, or in thesmaller holes. It is not necessary to employ a guide piece t-o cause thepiston to revolve with the body of the lamp, as its friction on theinside of the cylinder, beingV in which I construct my improved lardlamp, what I claim therein as new, and desire to secure by LettersPatent, is

The so constructing` the burner of such a lamp, as to admit of theinserting of aV f number of small wicks through a series of openings inthe upper side of such burner, and the passing ofsaid wicks,collectively, through a larger hole, adapted thereto, in its lower side;there being, also, a number of` small holes perforated in the lowerlside of the burner for the admission of the lard, or

otherV fatty matter; the Whole being conthem, by Which a remarkablyclear, Whitey strueted and operating substantially as light is produced,and the tendency to le the free admission of atmospheric air aroundEDWIN L.v BRUNDAGE.

herein set forth. smoke is nearly destroyed. Y Y A V The advantaffederived from the forego- Y' 5 ing arrangemert of the burner is the perli P ROBINSON" t feet combustion of the burning fluid, in con- Witnesses:

sequence of the smallness of the Wicks, and THos. P. JONES,

